Good Morning! I came across this website that has a whole bunch of info on beginner's potty training. I am definitely trying this myself when my Rosie whelp's. Check it out and see if it is for you....
Puppies at 3 to 3½ weeks - Time to start potty training
If you go to the bottom of this series of pages available on training there is another link to a page that discusses why the toy breeds are harder to train and that is one more thing I would definitely read.
